# coding utf-8

import math

# 计算数组中去掉首尾之后的评价值
def practic():
    pass
    datas = [12, 21, 32, 45, 65,89,90]
    first, *center,end = datas
    avgresult = avg(center)
    print(avgresult)

if __name__ == '__main__':
    pass
    practic()